05-14 12:40:35.931 8337-8337/com.example.admin.clicknorderserver E/OpenGLRenderer: Getting MAX_TEXTURE_SIZE from GradienCache
05-14 12:40:35.931 8337-8337/com.example.admin.clicknorderserver E/OpenGLRenderer: MAX_TEXTURE_SIZE: 16384
05-14 12:40:35.931 8337-8337/com.example.admin.clicknorderserver E/OpenGLRenderer: Getting MAX_TEXTURE_SIZE from Caches::initConstraints()
05-14 12:40:35.931 8337-8337/com.example.admin.clicknorderserver E/OpenGLRenderer: MAX_TEXTURE_SIZE: 16384
05-14 12:40:57.171 8337-8337/com.example.admin.clicknorderserver E/dalvikvm: Could not find class 'android.graphics.drawable.RippleDrawable', referenced from method android.support.v7.widget.AppCompatImageHelper.hasOverlappingRendering

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sign_in);
    edtPhone=(MaterialEditText)findViewById(R.id.edtPhone);
    edtPassword=(MaterialEditText)findViewById(R.id.edtPassword);
    btnSignIn=(FButton)findViewById(R.id.btnSignIn);
    //Init firebase
    db=FirebaseDatabase.getInstance();
    users=db.getReference("User");
    btnSignIn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

signInUser(edtPhone.getText().toString(),edtPassword.getText().toString());
        }

        private void signInUser(String phone, String password) {
            final ProgressDialog mDialog=new ProgressDialog(SignIn.this);
            mDialog.setMessage("Please wait...");
            mDialog.show();
            final String localPhone=phone;
            final String  localPassword=password;
            users.addValueEventListener(new ValueEventListener() {
                @Override
                public void onDataChange(DataSnapshot dataSnapshot) {

                    if (dataSnapshot.child(localPhone).exists())
                    {
                        mDialog.dismiss();
                        User
user=dataSnapshot.child(localPhone).getValue(User.class);
                        user.setPhone(localPhone);
                        if (Boolean.parseBoolean(user.getIsStaff()))
                        {
                            if (user.getPassword().equals(localPassword))
                            {
                                Intent login =new
                                Intent(SignIn.this,Home.class);
                                Common.currentUser=user;
                                startActivity(login);
                                finish();

                            }
                            else
                                Toast.makeText(SignIn.this,"Wrong password",Toast.LENGTH_SHORT).show();
                        }
                        else
                            Toast.makeText(SignIn.this,"Login with staff account",Toast.LENGTH_SHORT).show();
                    }
                    else
                    {
                        mDialog.dismiss();
                        Toast.makeText(SignIn.this,"User not exist in database..",Toast.LENGTH_SHORT).show();
                    }
                }

                @Override
                public void onCancelled(DatabaseError databaseError) {

                }
            });
        }
    });

    }
}